在RLC并联的正弦电路中,端口电流的有效值(   )各支路电流的有效值之和。          

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68472' and id < 4420906 and id<>'4420906' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68472' and id > 4420906 and id<>'4420906' order by id asc limit 5